function validesondage(langue)
{
	// NEW d abord test si coché qqchose
	// set var radio_choice to false
	var radio_choice = false;
	// Loop from zero to the one minus the number of radio button selections
	for (counter = 0; counter < document.formulsondage.reponse.length; counter++)
		{
		// If a radio button has been selected it will return true
		// (If not it will return false)
		if (document.formulsondage.reponse[counter].checked)
		radio_choice = true; 
		}
	
	if (!radio_choice)
	{
	// If there were no selections made display an alert box 
	alert("Merci de cocher une réponse.")
	// return (false);
	}
	else
	{
		document.formulsondage.action='index.php?rubrique=sondage&langue='+langue;
		document.formulsondage.submit();
	}
}